Improvement in feed mechanisms for sewing-machines



W. W. WILLIAMS & N. S. WAKEFIELD.

FEED MECHANISM Fon SEWING MACHINE.

N PETERS. FHOYO-LITHOGEAPHZR, WASHINGTON. D C

UNITED STATES PATENT OFFICE.

WILLARD W. WILLIAMS AND NATHAN S. WAKEFIELD, OF OAMDEN, N. Y.

IMPROVEMENT IN FEED MECHANISMS FOR SEWING-MACHINES.

Specification forming part of Letters Patent N o. 182,879, dated October3, 1876; application tiled April 18, 1876.

' change the direction of its horizontal movement) around theneedle-bar, so that it may be turned to the extent of a whole or anumber of circles in either direction, as will be more fully describedhereinafter.

Figure lis a side elevation, partly in sec tion, and Fig. 2 is aninverted view of our invention.

A represents a suitable cylinder, which is made in two parts, anddesigned to be secured together by means of the screws and ears B O. Thetwo heads of this cylinder are made separate therefrom, and are unitedtogether by means of atube or sleeve, Ef, through which the needle-bar Fpasses.

Passing down through this cylinder' to one side of the needle-bar is thefeed-foot G, the upper end of which is held pressed upward against thehead H of the lever I by a spring,

V a, which lever I is held pressed downward by the coiled spring b.

Placed inside of the cylinder A is the conical sleeveJ, which :is madenearly as large as the inside diameter of the cylinder, and which as ahole through its center for the passage of the tube or sleeve E', and aslot through one side for the passage of the feed-foot G, the incline Kbeing at the bottom of said slot. Between the top of this sleeve J andthe head D is placed a coiled spring, N, which holds the sleeve presseddown on top of the ring L formed on the front end of the regulating-armM. This ring L is placed Wholly inside of the cylinder A, and has boththe needle-bar F and feed-foot G operating inside of it. Where this ringis not enlarged sufficiently to allow the feed-foot G to operate insideof it, as here shown, the two heads D E, which are turned by means ofthehandle P, and carry the feedfoot Gr around with them, can be turned onlyabout one-half around, when the thread has to be cut, the work taken offthe horn, reversed, then put on again, and the machine again started.

By means of the arrangement of parts here shown, continuous circles canbe sewed in either direction, and thus the range ofthe machine more thandoubled.

Having thus described our invention, we claim- The combination of thetwo heads D E, connected by the sleeve E', through which the needle-barpasses, the conical sleeve J, slotted to receive the feed-foot Gr, thearm M, provided with the ring L, said ring being placed inside of thecylinder A, and the feedf0ot operated within the ring L by the sleeve J,substantially as and for the purpose set forth.

WILLARD WATSON WILLIAMS. NATHAN STOEL WAKEFIELD. Witnesses:

R. S. HOWELL, W. R. PADDocK.

